Blizzards

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Transcript of Blizzards

The meaning of the word blizzard is a very cold wind. It is a North American word. Blizzards always come with blowing snow whipped or brought up from theground. In a blizzard the conditions are freezing temperatures, high speed of winds, not any or low visibility and continuously driftingsnow. A related name to the blizzard used in the USSR is "Buran". The people in the GreatPlains call them "Black Blizzards". The terms major storm strong winds tell the severity of the storm.The origin and the conditionsThere are three necessary elements required to form a blizzard. 1.The temperature must be cold on both the ground and in the clouds. 2.Moisture is required to make clouds and precipitation. 3.Warm air is also needed to make clouds and to cause precipitation.What Forms blizzardsThere are many different types of blizzards, each unique from the others. Three of the many I am going to talk about. 1.Ground blizzard. 2.Lake effect blizzard. 3.Traditional blizzard.Types Of Blizzards1.Ground blizzards Ground blizzards occur when high winds blow snow which has already fallen. There are 3 types, horizontal advection, vertical advection and thermal mechanical {mixture of two}. 2. When cold wind blows over warm water. The wind lifts the water and dumps it along the shoreline. Because snow does not rise in too much wind these blizzards are rare. 3. Traditional blizzards normal.Fun Facts-Did you know that you don't need snow falling from the sky for a blizzard to occur? When wind blows snow already fallen can get tossed causing a small blizzard.-The snow reflects a high level of sunlight which can cause loss of eyesight to one who looks at it directly. That's why you should wear sunglasses, goggles or anyting else the will protect your eyes from these ultra radiation rays. The storm of the century is also known as the great blizzard of 1993. The storm took place on the 15th of March. It is known for its extreme force, big size and its wide reaching effect {meaning it damaged a lot}. 15cm to 20cm of snow fell in the southern part of the U.S.A and in places like Alabama, 30cm to 41cm. Even in Florida fell 10cm with gusts of wind like a hurricane. The storm of the centuryThe storm took place over the Gulf of Mexico. It also stretched to Canada and Central America, but destroyed most of the Eastern part of the U.S. In the Northwestern part of Florida, tornadoes, caused by the blizzard, killed dozens of people. The storm caused lost of electricity to over 10 million people throughout the U.S. 310 people were lost. 40% of U.S experienced it. -In 1997, federal emergency caught the first blizzard in Ohio and New York. In five days the snow got up to 12 inches thick. -Rochester, part of New York, is the snowiest place in U.S, and can gather up to 94 inches of snow each year!Blizzards can cause hypothermia. To stay away from it, dry your clothes and keep moving to keep your blood flowing. The more you move the better. Also try to wear lots of layers and it's a good idea to bring extra when out in a blizzard.BlizzardsPeriod of 6 or more hours with winds blowing at least 40km/h- Canadian definition.pinguFor snow to form, it is necessary for the temperature to be cold on the ground and in the cloud. If the temperature near the ground is above 0 degrees, the snow will melt while coming down and turn into rain or freezing rain.Moisture in the air is called water vapor. Air blowing across water like a stream is an example of water vapor. When the wind blows the air over the body of water, some of the water evaporates into the air. Now it is considered water vapor. Cold air doesn't hold much vapor. The colder the air the smaller the storm.For a blizzard to form cold air must rise over warm air. There are two ways to do this. One way is cold air can move toward the equator from the poles while warm air moves towards the poles from the equator. Another way is warm air can rise to form clouds and cold air runs up a mountainside.FishiesJaza-kallah for listening to my prezi-tation